125729299 has 2 divisors, whose sum is σ = 125729300. Its totient is φ = 125729298.

The previous prime is 125729281. The next prime is 125729311. The reversal of 125729299 is 992927521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125729299 - 2⁵ = 125729267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125729209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62864649 + 62864650.

It is an arithmetic number, because the mean of its divisors is an integer number (62864650).

Almost surely, 2^125729299 is an apocalyptic number.

125729299 is a deficient number, since it is larger than the sum of its proper divisors (1).

125729299 is an equidigital number, since it uses as much as digits as its factorization.

125729299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 46.

The square root of 125729299 is about 11212.9076960439. The cubic root of 125729299 is about 500.9705136543.

The spelling of 125729299 in words is "one hundred twenty-five million, seven hundred twenty-nine thousand, two hundred ninety-nine".